<template>
    <div class="container_warp">
      <div id="containerChart"></div>
      <RightDrawer class="right_drawer" :drawerType="type" :selectCell="selectCell" :graph="graph" :grid="grid" @deleteNode="deleteNode"></RightDrawer>
      <div class="operating">
        <div class="btn-group">
          <div class="btn" title="圆形节点" @mousedown="startDrag('Circle',$event)">
            <i class="iconfont icon-circle"></i>
          </div>
          <div class="btn" title="正方形节点" @mousedown="startDrag('Rect',$event)">
            <i class="iconfont icon-square"></i>
          </div>
          <div class="btn" title="条件节点">
            <i class="iconfont icon-square rotate-square" @mousedown="startDrag('polygon',$event)"></i>
          </div>
          <div class="btn-group_tips" v-if="showTips">
            拖拽生成</br>资产拓扑图形
          </div>
        </div>
        <div class="btn-group">
          <Tooltip content="直线箭头" placement="bottom">
              <div :class=" ['btn',currentArrow === 1?'currentArrow':'']" @click="changeEdgeType('normal')">
                <i class="iconfont icon-ai28"></i>
              </div>
          </Tooltip>
          <Tooltip content="曲线箭头" placement="bottom">
              <div :class=" ['btn',currentArrow === 2?'currentArrow':'']" @click="changeEdgeType('smooth')">
                <i class="iconfont icon-Down-Right"></i>
              </div>
          </Tooltip>
          <Tooltip content="直角箭头" placement="bottom">
              <div :class=" ['btn',currentArrow === 3?'currentArrow':'']" @click="changeEdgeType()">
                <i class="iconfont icon-jiantou"></i>
              </div>
          </Tooltip>
        </div>
        <!-- <div class="btn-group">
          <div class="btn" @click="changeMode('edit')" title="选择模式">
            <i class="iconfont icon-mousepointershubiao"></i>
          </div>
          <div class="btn" @click="changeMode('drag')" title="拖拽模式">
            <i class="iconfont icon-tuozhuai"></i>
          </div>
        </div> -->
        <div class="btn-group">
          <Tooltip content="删除" placement="bottom">
              <div class="btn" @click="deleteNode()" style="margin-top: 5px;">
                <i class="iconfont icon-shanchu"></i>
              </div>
          </Tooltip>
          <Tooltip content="保存PNG" placement="bottom">
              <div class="btn" @click="saveToPNG()" title="保存">
                <i class="iconfont icon-baocun"></i>
              </div>
          </Tooltip>
        </div>
      </div>
    </div>
    
</template>
<script>
import '@antv/x6-vue-shape'
import { Graph,Shape,Addon,FunctionExt,DataUri} from '@antv/x6';
import RightDrawer from './components/RightDrawer';
import insertCss from 'insert-css';
import {startDragToGraph} from './Graph/methods.js'
const data = {};
export default {
    data() {
      return {
        graph:'',
        value1: true,
        type:'grid',
        selectCell:'',
        connectEdgeType:{  //连线方式
          connector: 'normal',
          router: {
            name: ''
          }
        },
        showTips:false,
        currentArrow:1,
        grid:{ // 网格设置
          size: 20,      // 网格大小 10px
          visible: true, // 渲染网格背景
          type: 'mesh',
          args: {
            color: '#D0D0D0',
            thickness: 1,     // 网格线宽度/网格点大小
            factor: 10, 
          },
        }
      }
    },
    components:{
      RightDrawer
    },
    methods: {
        initX6(){
            var _that = this
            this.graph = new Graph({
                container: document.getElementById('containerChart'),
                width: 1700,
                height: '100%',
                grid: _that.grid,
                resizing: { //调整节点宽高
                  enabled: true,
                  orthogonal:false,
                }, 
                selecting: true, //可选
                snapline:  true,
                interacting: {
                  edgeLabelMovable: true
                },
                connecting: { // 节点连接
                  anchor: 'center',
                  connectionPoint: 'anchor',
                  allowBlank: false,
                  snap: true,
                  createEdge () {
                    return new Shape.Edge({
                      attrs: {
                        line: {
                          stroke: '#1890ff',
                          strokeWidth: 1,
                          targetMarker: {
                            name: 'classic',
                            size: 8
                          },
                          strokeDasharray: 0, //虚线
                          style: {
                            animation: 'ant-line 30s infinite linear',
                          },
                        },
                      },
                      label: {
                        text:''
                      },
                      connector: _that.connectEdgeType.connector,
                      router: {
                        name: _that.connectEdgeType.router.name || ''
                      },
                      zIndex: 0
                    })
                  },
                },
                highlighting: {
                  magnetAvailable: {
                    name: 'stroke',
                    args: {
                      padding: 4,
                      attrs: {
                        strokeWidth: 4,
                        stroke: '#6a6c8a'
                      }
                    }
                  }
                },
            });
            insertCss(`
              @keyframes ant-line {
                to {
                    stroke-dashoffset: -1000
                }
              }
            `)
            this.graph.fromJSON(data)
            this.graph.history.redo()
            this.graph.history.undo()
            // 鼠标移入移出节点
            this.graph.on('node:mouseenter',FunctionExt.debounce(() => {
                const container =  document.getElementById('containerChart')
                const ports = container.querySelectorAll(
                  '.x6-port-body'
                )
                this.showPorts(ports, true)
              }),
              500
            )
            this.graph.on('node:mouseleave', () => {
              const container =  document.getElementById('containerChart')
              const ports = container.querySelectorAll(
                '.x6-port-body'
              )
              this.showPorts(ports, false)
            })
            this.graph.on('blank:click', () => {
              this.type = 'grid'
            })
            this.graph.on('cell:click', ({ cell }) => {
              this.type = cell.isNode() ? 'node' : 'edge'
            })
            this.graph.on('selection:changed', (args) => {
              args.added.forEach(cell => {
                this.selectCell = cell
                if(cell.isEdge()){
                 cell.isEdge() && cell.attr('line/strokeDasharray', 5) //虚线蚂蚁线
                 cell.addTools([
                    {
                      name: 'vertices',
                      args: {
                        padding: 4,
                        attrs: {
                          strokeWidth: 0.1,
                          stroke: '#2d8cf0',
                          fill: '#ffffff',
                        }
                      },
                    },
                  ])
                }
              })
              args.removed.forEach(cell => {
                cell.isEdge() && cell.attr('line/strokeDasharray', 0)  //正常线
                cell.removeTools()
              })
            })
        },
        showPorts (ports, show) {
          for (let i = 0, len = ports.length; i < len; i = i + 1) {
            ports[i].style.visibility = show ? 'visible' : 'hidden'
          }
        },
        // 拖拽生成正方形或者圆形
        startDrag(type,e){
          startDragToGraph(this.graph,type,e)
        },
        // 删除节点
        deleteNode(){
          const cell = this.graph.getSelectedCells()
          this.graph.removeCells(cell)
          this.type = 'grid'
        },
        // 保存png
        saveToPNG(){
          this.$nextTick(()=>{
            this.graph.toPNG((dataUri) => {
            // 下载
              DataUri.downloadDataUri(dataUri, '资产拓扑图.png')
            },{
              backgroundColor: 'white',
              padding: {
                top: 50,
                right: 50,
                bottom: 50,
                left: 50
              },
              quality: 1,
              copyStyles:false
            })
          })
          
        },
        // 改变边形状
        changeEdgeType(e){
          if(e === 'normal'){
            this.connectEdgeType = {
              connector: 'normal',
              router: {name: ''}
            }
            this.currentArrow = 1
          }else if (e === 'smooth'){
            this.connectEdgeType = {
              connector: 'smooth',
              router: {name: ''}
            }
            this.currentArrow = 2
          }else{
            this.connectEdgeType = {
              connector: 'normal',
              router: {name: 'manhattan'}
            }
            this.currentArrow = 3
          }
        }
    },
    mounted(){
        this.initX6()
        setTimeout(()=>{
          this.showTips = true
        },1000)
        setTimeout(()=>{
          this.showTips = false
        },5000)
    }
};
</script>
<style lang="less">
  @import '../assets/iconfont.css';
  @import './index.less';
</style>